I am unable to make calls from my blackberry. If someone calls me it goes str8 to VM. If i try making a call, it says only emergency calls allowed. I used to be able to make calls. Can someone please let me know if there is something i do do about this.

Yes i did. I am able to recieve mails and they said there was nothing blocked. They want me to take it to a service center to have it checked out so wanted to know if there was something i could do before i did that.

I supposed that your Blackberry is connected to a Blackberry Enterprise Server. And there must be someone in your company who administrates this server. You have to ask him/her to remove the policy from your BB Account.

If your BB is not connected to a BES, than maybe the policy was applied from the previous owners company.